"Supergirl: Immortal Kombat"

"...'Supergirl' (Benoist) realizes that in order to stop 'Lex' (Jon Cryer) and 'Leviathan' she must work with the one person she never thought she'd trust again – 'Lena' (McGrath). Meanwhile, 'Nia' (Maines) keeps dreaming about 'Brainy' (Rath) but struggles with what the dreams are trying to tell her. Then Brainy realizes there is only one way to stop Lex..."